This is my second 6mm semi auto, but this one actually works. It was very surprising to me, because I can never get anything aligned perfectly. I haven't shot with the barrel yet, but hooked up to unregulated propane, it can dump a 20 round mag in less than 5 seconds and shoot the BBs about 10-15 feet. This gun would be extremely simple if not for the blow forward bolt. A single shot version of this would be a piece of brakeline, a blowgun, an elbow, and a quick connect.Instead, it uses (going from gas tank to barrel)Propane tankPropane AdapterFemale QCMale QC1/4" street elbowBlowgun1/8" close nipple3" section of 1" Sch 40 PVC1/4" aluminum rodSolid Epoxy as a plug in the back of the PVCSolid Epoxy bolt, with 5/16" and 1/4" brakelineSpring1" female adapter1" plug5/16" compression TA couple mags made from a compression olive, nut, and 5/16" tubing5/16" brakeline sleeved over 9/32" brakeline

I may add a stock to the gun, which is why I have part of the aluminum rod sticking out the back. I may also add a small BB shotgun underneath the barrel, as well as a rifle scope on top. I will almost definitely paint the gun (flat black).

It's not as cool as Jack's clear syringe for a blow forward tube, but a plastic syringe costs me almost $5.

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Attachments

Everything inside the PVC

Barrel and mag setup

Unscrewed barrel

Without Barrel

Detached Mags; I may make a hopper sometime

The bolt is a 3/4&quot; long piece of 5/16&quot; brakeline (back) that slides over the 1/4&quot; aluminum tubing. There is 1/4&quot; brakeline epoxied inside the 5/16&quot; brakeline, and an epoxy cylinder surrounds it all.

looks great. I would have used a longer barrel because of the slow opening blowgun. does the bolt ever jam inside that tee?

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searching for a modern day savior from another place,inclined toward charity,everyone's begging for an answer,without regard to validity,the searching never ends,it goes on and on for eternity
-Bad religion

mopherman wrote:looks great. I would have used a longer barrel because of the slow opening blowgun. does the bolt ever jam inside that tee?

The barrel is 30" long. I guess I forgot to take pictures of how long it actually is.The bolt has never jammed, but it occasionally knocks the 1/4" aluminum rod back. This is also why I'm not shooting it right now; I'm waiting for the epoxy on the rod to dry so it stays in place.

Jack, I'm never going to have any videos of any of my guns, strafers or otherwise. It sucks major balls, but I don't have a video camera or near enough cash for one.iPaintball, it's just regular Ace Hardware 2 part epoxy, nothing special (except it's 60 minute epoxy and took around a week just to dry )

I did mix it right, because I inject it through 2 syringes, each with graduations of 1 mL on them. For tin ythings, I usually mix around 4 mL. Larger things, like the plug, took 15-17 mL of each. And yes, the ratio of resin to hardener IS supposed to be 1:1.

Updates:Mounting a rail right now, to put a scope on. Made another magazine; I have 3 now.Adding a new hopup, the bolt spit the old one out.Attached a new brass barrel that isn't bent like the previous aluminum one.Making a stock out of aluminum rod.Might make a handle or a place to put my left hand (either that, or make another and dual wield ).